Lubricating apparatus operating through shaking of the lubricant for setting same



Oct. 27, 1953 H. A. CHINCHOLE 2,656,952 LUBRICATING APPARATUS OPERATINGTHROUGH SHAKING OF THE LUBRICANT FOR SETTLING SAME Filed April 30, 19513 Sheets-Sheet l INVENTOR Mam flwza cfe M v 9PM ATTORNEY CHINCHOLE2,656,952 RATUS TING THROUGH SHAKING BRICANT F SETTLING SAME Oct. 27,1953 H. A

LUBRICATING APPA OF THE LU Filed April 30, 1951 3 Sheets-Sheet 2 NW wNNm w M-IK VAWQ um m QWN NW \R A SwN N M.

mm SQ m INVENTOR ATTORNEY Oct. 27, 1953 H A. CHINCHOLE 2,656,952

LUBRICATING APPARATUS OPERATING THROUGH SHAKING OF THE LUBRICANT FORSETTLING SAME Filed April 50, 1951 5 Sheets-Sheet 5 INVENTOR M a. m

BY M,

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ATTORNEY Patented Oct. 27, 1953 UNITED STATES PATENT OFFICE Henri A.Chinchole, Paris, France Application April 30, 1951, Serial No. 223,672In Canada June 15, 1949 12 Claims. 1

My invention has for its object the provision of a lubricating apparatuswherein the preliminary settling of the lubricant to be dispensed iseffected by shaking.

Loss of priming is a general disadvantage of all known distributors ofstiff lubricant, especial- 137' when the weather is cold. This is due tothe fact that the operation of the lubricant pump produces air pocketsinside the grease or fat and consequently the pump, even when workingnormally, no longer feeds.

A method of settling through the application of shocks will therefore beof interest in order to eliminate the air pockets and to produce anautomatic repriming of the pump. Furthermore, the settling throughshaking provides for a proper distribution of the best compact greases.

My invention provides a lubricating apparatus for the shock-settlingofthe lubricant which apparatus includes a tubular piston forming anoutlet passage for the compressed lubricant, the pump cylinder rigidwith the lower end of a receiver containing the lubricant, and alsomeans are provided for shifting said container in a predetermineddirection preferably upwardly and allowing its sudden return in theopposite direction for settling the lubricant in the pump cylinder asprovided through the impinging of the latter against a stationary stop.

In order that such an apparatus may work perfectly, it is necessary thatthe kinetic energy acquired by the container and its contents whendropping may be used Wholly for the settling of the lubricant.

My invention has more particularly for its object the provision of anapparatus wherein the container is disconnected before it drops, fromthe means urging it upwardly which prevents any portion of the kineticenergy acquired by said container and its contents when dropping, frombeing dissipated through the return of the means raising the containerinto its original position.

The raising of the container and its subsequent disconnection may beaccomplished either by hand or automatically.

Two embodiments of my invention will now be disclosed merely by way ofexample, reference being made to accompanying drawings, wherein:

Fig. 1 is a vertical cross-section of a part of a lubricating apparatusoperating under pressure according to invention.

Fig. 2 is a vertical section of the slider and its control system,illustrated at the end of the compressional stroke.

Fig. 3 is a vertical section similar to. that of 2 Fig. 2, with theslider at the end of its return stroke.

Fig. 4 is a cross-section, through line IV--IV of Fig. 5, of amodification forming an automatic lubricating apparatus operating underpressure.

Fig. 5 is a cross-section through line V--V of Fig. 4.

The apparatus illustrated in Fig. 1 includes a container l at the lowerend of which is arranged a pump cylinder 2, centrally positioned in saidcontainer I through the agency of asleeve 3 while a stamped leathergasket 4 is fitted between the sleeve 3 and the pump cylinder 2.

The container is adapted to move vertically and it is capped by astationary hood 5 inside which it may slide.

A stationary tubular piston 6 is provided at the lower end of a tube theupper part of which is secured in the hood 5 and is provided with anouter thread '1 adapted to engage a connection opening into alubricating channel.

Around the tube forming the piston is arranged a spring 8' bearing onone hand against the hood 5, and on the other against the sleeve 3. Saidspring 8 has thus a tendency to urge the container l downwardly and itsaction is associated with that of gravity in order to increase theacceleration with which the container drops whereby the speed of drop ofthe container may be at its maximum at the moment at which the lattercomes into contact with the stationary stop provided for it. This suddenstop of the container I in its downward movement produces a settling ofthe lubricant inside the container 1 and inside the cylinder 2.. Saidsudden stop is obtained through an annular abutment or anvil afiorded bythe annular rim 9 against which impinges the base or carrier 10 whichcarries the container I and the cylinder 2.

The annular rim 9 against which the base ll! of the container orreservoir impinges may be a portion of the spider 9A which may serve tosupport a plurality of containers as described. in the parentapplication. The bore 93 of the annular portion 9 acts as a guideway forthe shouldered base Ill, and the framework 12 is provided with aregistering bore IZA, both of these bores providing a guideway for theslider II.

The slider H is adapted to reciprocate inside the bore lZA of the framel2 of the apparatus, for lifting the container 1 and. consequentlyengaging the pump cylinder 2 over the piston 6 so as to produce thecompression of the lubricant inside the cylinder 2 and. the ejection ofthe latter into the lubricating. channel through the agency lower partof the frame l2.

3 of the tubular piston 6 that is provided with a non-return valve :3.

Of course, the lubricating apparatus thus disclosed may be mounted onany suitable carrier, including e. g. rollers as shown at 14. Theapparatus may, furthermore, include a plurality of containers such as l,filled with lubricants having different properties.

The system controlling the reciprocating movement of the slider H isconstituted by a lever I pivoting round a horizontal axis E5 on theframe 52, and a link 61 pivotally secured at one end through the spindleHi to the slider H and at the other end to the lever l5 through aforkshaped part l8 shown on a larger scale in Fig. 3. The lever it isprovided at one end with a spindle 2!! adapted to engage said forked endit of the link H. A. spring 2! bearing on the pivotal spindle l8 and onthe lower portion of the link i! constantly urges said link in thedirection of the arrow F and consequently urges the fork 89 against thespindle 20..

Another angular spring 22 having an arm 22A bearing against the frame12, passes round the spindle it of the lever l5 engaging the side ofsaid lever 15, and urges the latter to rock in the direction of thearrow F1.

Lastly, the control system for the reciprocating of the slider includesa stop 23 constituted by a bent plate secured to the link I? and adaptedto impinge against the lower end of the frame I2 when the slider ll hasreached the end of its upward stroke.

The lubricating apparatus being in the position illustrated in Fig. 1and if it is desired to send compressed lubricant into the tubularpiston t, the end 24 of the lever should be first depressed so as tomake said lever pivot round its spindle it in the direction of the arrowF2 as shown in Fig. 2. This pivotal movement may continue until the stop23 abuts against the The slider has then reached its uppermost positionand the cylinder 2 has completely engaged the piston 6 so that somelubricant has been ejected under pressure through said piston.

If the pivotal movement of the lever I5 is continued in the direction ofthe arrow F2, the spindle 2c moves out of the fork is and engages theslope 25 forming, as shown in Fig. 3, one of the sides of the fork l9whereby the link H is of the pressure of the spring 8, the expansion ofwhich is intended to obtain maximum speed at the moment of impactagainst the stop or anvil 9. The container and lubricant contentsthereof have thus acquired a speed providing it with a high kineticenergy. The kinetic energy of the container is absorbed by the impactstopping the latter, while the kinetic energy of the lubricant contentsconstrains the latter to sink so as to fill all the recesses includingthe pump cylinder and the container.

During said movement, the stop 23 carried by the link I? descends withsaid link and with the slider and the spindle on the lever which stopsthe downward movement (Fig. 3).

If the lever 15 is then released, it rocks in the direction of the arrowF1 under the action of the spring 22 and the spindle 20 reengages thefork is forming the end of the link ll. The different components of thelubricating apparatus will have then resumed the positions illustratedin Fig. 1 and said apparatus is ready for further operation.

Figs. 4 and 5 illustrate in vertical cross-sections at right angles withone another an embodiment of an automatic apparatus including a controlpiston 26 adapted to abut the base H3 and raise the container I, thewider lower part 2? of the piston 26 adapted to move inside the cylinder28. It is obvious that this automatic fluid pressure control may be usedeither in alternation with or in combination with the manual operatingmeans previously described.

Underneath the cylinder 28 there, is provided a connection 29 for theadmission of compressed air. A valve 39 that is normally open when thepiston assumes the position illustrated in Figs. 4 and 5 permits theintroduction of compressed air which urges the pistons 25, 21 upwardlyso as to lift the container I.

The piston 26 is provided with an inner bore that contains an auxiliarypiston 31 which is adapted to be carried along by a stop shoulder 32when the piston 26 is raised through the latter portion of its upwardmovement. The rod 33 of said auxiliary piston raises a carrier or crosshead 3 controlling the valve 38 so as to close off the admission ofcompressed air. The carrier 3 3 also raises along with it the rod 35 ofa valve 36, so that the compressed air confined in the lower part of thecylinder 28 escapes, which permits the piston 2E-2? to lower again,while permitting the container l to drop onto its stop abutment 9 as inthe preceding case.

The valve 36 closes again while the valve 3% opens whereby pressureincreases inside the cylinder 28 and the piston Eli-21 rises, theoperation continuing thus as before, until the pressure in the hollowpiston 6 of the container l controlled by the piston 25 becomessufficient for equilibrating the lifting force of the piston 26 asproduced by the compressed air.

As soon as the lubricant inside the piston 6 is allowed to escape,through the action e. g. of a lubricating gun connected with thelubricating pipe, the pressure lowers inside the piston 6 and the piston26 is allowed to rise so that the apparatus operates againautomatically.

In order to allow the valves 30 and 35 to operate correctly, 1. e. toopen and close suddenly, the piston rod 33 extends downwardly to form anotched member 31, the notches whereof correspond to the open and.closed positions of the valves and cooperate with a resilient lockingmember 38 operating under the action of a spring 39.

The embodiment of the invention in which an exclusive property orprivilege is claimed is defined as follows:

1. In a dispenser for semi-solid materials such as lubricating greasesand the like, a support, a reservoir for containing a supply of suchmaterial, said reservoir being movable with respect to said support, anejector pump chamber in the reservoir, an anvil carried by said supportexteriorly of said reservoir, said reservoir being normally urged towardsaid anvil, means for moving said reservoir away from said anvil againstsaid urging during the ejection action of said pump and for releasingthe reservoir to recoil under said urging so that it strikes said anvil,whereby the resulting jarring serves to pack the material into the pumpchamber without voids or cavities; said means comprising a reservoircontacting member, means for moving said member in the direction to movethe reservoir away from said anvil, means adapted tobe trlppedi whensaid memberhas moved in said direction a predetermined distance torelease said memb' rfrom the influence of said moving means and. permitthe reservoir to recoil toward said anvil.

2. The dispenser as set. forth in claim 1" in which spring means isprovided for urging the reservoir toward said anvil.

3. In a dispenser for semi-solid materials: such as lubricating greasesand the like, a support, a reservoir for containing a supply of suchmaterial, said reservoir being movable vertically with respect to saidsupport, an ejector pump chamber in the lower part of thereservoir, ananvil carried by said support. beneath and exteriorly of said reservoir,means for raising said reservoir during the ejection action of said pumpand for letting the reservoir drop from its raised position so that itsbottom wall strikessaid anvil, whereby the resulting jarring serves topack the material into the pump chamber without voids or cavities; saidmeans comprising a reservoir contacting member, means for raising saidmember to lift the reservo x from said anvil, means adapted to betripped when said member has risen a predetermined distance to suddenlyrelease said member from. the influence of said moving means and permitthe reservoir to drop upon the anvil.

4. In a dispenser for semi-fluid material such as lubricating greasesand the like, a support, a reservoir for containing a supply of suchmaterial, an ejector pump cylinder within and rigid with said reservoir,a relatively fixed tubular piston through which compressed material isto be fed from said reservoir, said cylinder adapted to slide over andalong said piston to compress the material in the latter for dischargewhen said reservoir is moved from a given position relative to saidsupport, the cylinder and piston being separated at said given positionfor passage of material between said reservoir and said cylinder, astationary abutment on said support against which said reservoir restswhen in said given position, the reservoir being urged continuallytoward said abutment, a device for moving said reservoir and cylinderoutwardly away from said abutment, said device comprising reservoircontacting means and actuating means, a detachable connection betweensaid reservoir contacting means and said actuating means, and means fordisengaging said connection toward the end of said outward movement ofthe reservoir to permit the reservoir and cylinder to return and strikethe abutment to introduce and compact the material into the cylinder.

5. In a dispenser for semi-solid materials such as lubricating greasesand the like, a support, a reservoir for containing a supply of suchmaterial, said reservoir being movable with respect to said support, anejector pump cylinder in the reservoir, an anvil carried by said supportexteriorly of said reservoir, said reservoir being normally urged towardsaid anvil, means for moving said reservoir away from said anvil againstsaid urging during the ejection action of said pump and for releasingthe reservoir to recoil under said urging so that it strikes said anvil,whereby the resulting jarring serves to pack the material into the pumpcylinder without voids or cavities; said means comprising a guideway insaid support extending in a direction longitudinally of the axes of saidpiston and cylinder, a slider positioned within said uideway and.adapted. to move therein to contact. the reservoir and move it away fromsaid anvil, an actuating lever pivotally' mounted on said support, alink pivotally' connected with said slider, a detachable connectionbetween said link and said lever through which said lever may controlthe: movement of. said slider, reservoir, and pump cylinder in at leastthe outward direction, a spring urging said link into a predeterminedangular position with reference to said slider and toward said lever, asecond spring urging said lever toward engagement with said link forestablishing the operative connection of said link and lever, and meansfor abruptly tripping said detachable connection near the end of saidoutward movement to permit the reservoir and cylinder to. return towardthe anvil.

6. The dispenser as set forth in claim 5 in which said tripping meanscomprises a. projection. on said link adapted to abut a part of saidstationary support.

7. The dispenser as set forth in claim 6 in which said projection isadapted to abut a portion of said lever to limit the return movement ofsaid slider.

8. In a dispenser for semi-solid materials such as lubricating greasesand the like, a support, a reservoir for containing a supply of suchmaterial, said reservoir being movable with respect to said support, anejector pump cylinder inv the reservoir, an anvil carried by saidsupport exteriorly of said reservoir, said reservoir being normallyurged toward said anvil, means for moving said reservoir away from saidanvil against said urging during the ejection action of said pump andfor releasing the reservoir to recoil under said urging so that itstrikes said anvil, whereby the resulting jarring serves to pack thematerial into the pump cylinder without voids or cavities; said meanscomprising a guideway in said support extending in a directionlongitudinally of the axes of said piston and cylinder, a sliderpositioned within said guideway and adapted to move therein to contactthe reservoir and move it away from said anvil, an actuating leverpivotally mounted on said support, a link pivotally connected with saidslider, a detachable connection between said link and said lever throughwhich said lever may control the movement of said slider, reservoir, andpump cylinder in at least the outward direction, means yieldably urgingsaiol link and said lever into engagement for establishing the operativeconnection of said link and lever, and means for abruptly tripping saiddetachable connection near the end of saidoutward movement to permit thereservoir and cylinder to return toward the anvil, said tripping meanscomprising a projection on said link adapted to abut a part of saidstationary support.

9. In a dispenser for semi-solid materials such as lubricating greasesand the like, a support, a reservoir for containing a supply of suchmaterial, said reservoir being movable with respect to said support, anejector pump cylinder in the reservoir, an anvil carried by said supportexteriorly of said reservoir, said reservoir being normally urged towardsaid anvil, means for moving said reservoir away from said anvil againstsaid urging during the ejection action of said pump and for releasingthe reservoir to recoil under said urging so that it strikes said anvil,whereby the resulting jarring serves to pack the material into the pumpcylinder without voids or cavities; said means comprising a fluidpressure system including a power cy1inder and a piston movable thereinto abut and move the reservoir and pump cylinder outwardly from saidanvil, and means for applying and suddenly releasing the supply ofpressure fluid to said power cylinder to alternately move said reservoiraway from and permit it to return to and impinge upon said anvil.

10. The dispenser as set forth in claim. 9 in which there are providedvalve means comprising an inlet valve for admitting pressure fluid tothe power cylinder behind the piston to move it outwardly and a dumpingoutlet valve for quickl releasing pressure fluid from behind the pistonto permit a quick return of the power piston and reservoir, and valveactuating means adapted to be tripped by the movement of the piston nearthe end of its outward travel to close the inlet valve and open theoutlet valve, and to i which there are provided positioning and lockingmeans for automatically and yieldingly holding said valve actuatingmeans in either of its extreme positions corresponding to the opening ofone valve and the closing of the other.

12. In a dispenser for semi-solid materials such as lubricating greasesand the like, a support, a reservoir for containing a supply of suchmaterial, said reservoir being movable with respect to said support, anejector pump cylinder in the reservoir, an anvil carried by said supportexteriorly 35 of said reservoir, said reservoir being normally urgedtoward said anvil, means for moving said reservoir away from said anvilagainst said urging during the ejection action of said pump and forreleasing the reservoir to' recoil under said urging so that it strikessaid anvil, whereby the resulting jarring serves to pack the materialinto the pump cylinder without voids or cavities; said means comprisinga guideway in said support extending in a direction longitudinally ofthe axes of said piston and cylinder, a slider positioned within saidguideway and adapted to move therein to contact the reservoir and moveit away from said anvil, an actuating lever pivotally mounted on saidsupport, a detachable connection between said slider and said leverthrough which said lever may control the movement of said slider,reservoir, and pump cylinder in at least the outward direction, meansfor abruptly tripping said detachable connection near the end of saidoutward movement to permit the reservoir and cylinder to return towardthe anvil, and auxiliary means for raising and releasing said reservoirand pump cylinder comprising a fluid pressure system including a powercylinder and a piston movable therein to abut and move the reservoir andpump cylinder outwardly from said anvil, and means for applying andsuddenly releasing the supply of pressure fluid to said power cylinderto alternately move said reservoir away from and permit it to return toand impinge upon said anvil.

HENRI A. CHINCHOLE.

References Cited in the file of this patent UNITED STATES PATENTSChinchole June 5, 1951

